I know you are probably not looking to here this.........
Don't overfeed, once every other day and then only what they eat in less than a minute. OK, off the soapbox.
There are some sand dwelling snails that are carnivorous, ILYANASSA OBSOLETA I believe, but make sure you get the ones that are warm water snails. Try a serpent star or two. Continue to use the siphon when you do water changes.
I'm not sure about all those crabs that you have, I never really met a crab that I liked. They are too opportunistic and get into places where I don't want them. That being said, I have about 7 small blue legged hermits in my tank. So, remember this is just my opinion and I am not preaching to you, like your signature says I'm just giving suggestions.  Enjoy!!!!
Jim
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90 Gallon glass, 135#'s of rock and 2" sand. 2-250w 20k XM metal halides. 2-95 watt actinic VHO, 4 powerheads, Coralife skimmer. Maroon Gold Striped Clown, Blue Chromis, Kole Tang, Pygmy Angel, Serpent Star, Brittle Star,Gorgonians, Mushrooms, Yellow Polyps, Turbo Snails & Blue Legged Hermits. 20 gal sump with Caulerpa, Mag 7 return pump. |